US5461943A - Cabinet scraper blade filing and burnishing tool - Google Patents
Cabinet scraper blade filing and burnishing tool Download PDFInfo
- Publication number
- US5461943A US5461943A US08/134,205 US13420593A US5461943A US 5461943 A US5461943 A US 5461943A US 13420593 A US13420593 A US 13420593A US 5461943 A US5461943 A US 5461943A
- Authority
- US
- United States
- Prior art keywords
- burnishing
- scraper blade
- fence
- rod
- blade edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
- B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
Definitions
- This invention relates to burnishers, file holders and other devices for preparing cabinet scraper blades for use.
- Cabinet scrapers are woodworking tools that are useful for removing fine layers of wood or finish from a work surface. There are two principal types of such scrapers. The first is simply a blade formed from a sheet of flat, typically rectangular steel on the order of 1/32" thick and typically 21/2" tall by 51/2" to 6" wide. Such scraper blades are used "freehand.” Other cabinet scrapers have a plane-like body with a flat sole that bears against the work surface. A rectangular scraper blade projects through a slot in the sole in order to contact the work surface.
- the blade for a plane-type cabinet scraper is prepared in a similar manner except that the edge is typically sharpened at a 25° to 30° bevel rather than square to the face of the blade.
- Previous devices have been developed to accomplish these tasks including, for instance, various handled burnishing rods, the variable burnisher described in U.S. Pat. No. 5,099,722 and devices for holding a file square to a fence against which the face of a scraper blade rides while its edge is filed.
- Such prior devices do not, however, simply and economically include burnishing and file holding apparatus in a single device or simultaneously accommodate in the same device means for preparing the edges of both of the above-described types of scraper blades.
- the present invention is a combination scraper blade edge preparation tool for: (1) filing a scraper blade edge square to its face or, alternatively, at a predetermined angle to the blade face and (2) for burnishing a scraper blade edge at a predetermined angle relative to the face of the blade.
- the present invention is economically manufactured with as few as five parts (plus a standard file) by utilizing a section of aluminum extrusion having a uniform cross section.
- the body of the tool formed by the section of aluminum extrusion provides a first position or pocket in which set screws hold the file square to a first scraper blade fence for filing a square edge on the blade.
- the body also provides a second position for the scraper blade so that the file is oriented at a predetermined angle between approximately 20° and 45° relative to a second fence. This may be accomplished by repositioning the file to a second location adjacent to a second fence.
- a second fence may be formed in a position that permits such a predetermined bevel angle to be filed on a blade without changing the file location.
- one or more holes for receiving a round burnishing rod fixed in a selected one of the holes by a set screw are positioned adjacent to a third fence.
- the longitudinal axis of each hole (and, therefore, of a burnishing rod positioned in the hole) is oriented at a different predetermined angle (typically between 1° and 15°) relative to the fence. Burnishing is accomplished by drawing the scraper along the burnishing rod while the scraper rides against the burnishing fence.
- the apparatus may conveniently be mounted on a workbench with wood screws that pass through its body and into the bench.
- FIG. 1 is a perspective view of a first embodiment the combination cabinet scraper blade filing and burnishing tool of the present invention with a file shown in position for preparing a square edge scraper blade.
- FIG. 2 is an end elevation view of the cabinet scraper blade filing and burnishing tool shown in FIG. 1 with one of the burnishing rod holes and the fixing screw holes through the body of the tool shown in broken lines and the three possible positions of cabinet scrapers during use of the tool also shown in broken lines.
- FIG. 3 is an end elevation view similar to FIG. 2 of an alternative embodiment of the combination cabinet scraper blade filing and burnishing tool of the present invention in which square and bevel edge filing is possible without moving the file.
- file 16 may be held within body 12 by set screws 14 acting against an edge 30 of file 16 so that the file is rigidly fixed with its face 24 oriented square to a first fence 26 of body 12 against which a scraper blade 28 is slid in order to file a square edge on scraper blade 28.
- File 16 may alternatively be held within body 12 by set screws 14 acting against face 24 of file 16 while it is adjacent to fence 34, thereby permitting a beveled edge to be filed on scraper 36 as it is slid along fence 34.
- scraper blades 28 or 36 can then be further dressed if desired, for instance, on a whetstone and then may be burnished by passing the edge to be burnished against burnishing rod 18 with the blade 28 against a third burnishing fence 38.
- FIG. 3 Alternative configurations of the combination cabinet scraper blade filing and burnishing tool of the present invention may be fabricated, such as the alternative embodiment illustrated in FIG. 3.
- the tool 110 in FIG. 3 includes a body 112 within which set screws 114 removably secure a file 116 in a single position in which the face 124 is square to a first fence 126 and at a predetermined angle to a second fence 134 so that the edge of a scraper 128 may be filed square or the edge of a scraper 136 may be beveled.
- Scraper 128 may be burnished by sliding the scraper 128 along burnishing fence 138 so that the edge of the scraper 128 contacts and slides across a burnishing rod 120.
- tool bodies 12 and 112 could be fabricated in other manners, the configuration illustrated in FIGS. 1 and 2 can probably most easily be formed by extruding body 12 of aluminum, or extruding, pulltruding or molding it of plastic, fiber reinforced plastic, a composite material or another suitable material having adequate strength and rigidity. Screws 40 and 140 may pass into a workbench top 42 or other secure work surface to hold tool 10 during use. By securing a section of "2 ⁇ 4" lumber to the underside of tool 10, by passing screws 40 into the edge of such a section, the tool 10 may be clamped in a vise during use by grasping the lumber between the vise jaws.
- files 16 and 116 are shown in the illustrations as metal files, they could also be one of numerous other planar abrasive devices such as diamond files and synthetic or natural abrasive stones. Additionally, successively finer files 16 and 116 or other planar abrasive devices can be mounted in bodies 12 and 112 during use of tools 10 and 110 in order to refine scraper blade edges before burnishing.
Abstract
Description
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US08/134,205 US5461943A (en) | 1993-10-08 | 1993-10-08 | Cabinet scraper blade filing and burnishing tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/134,205 US5461943A (en) | 1993-10-08 | 1993-10-08 | Cabinet scraper blade filing and burnishing tool |
Publications (1)
Publication Number | Publication Date |
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US5461943A true US5461943A (en) | 1995-10-31 |
Family
ID=22462238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/134,205 Expired - Lifetime US5461943A (en) | 1993-10-08 | 1993-10-08 | Cabinet scraper blade filing and burnishing tool |
Country Status (1)
Country | Link |
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US (1) | US5461943A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5640888A (en) * | 1995-05-17 | 1997-06-24 | Lee; Leonard G. | Woodturning scraper burnisher and method of burnishing woodturning scrapers |
US5679068A (en) * | 1994-08-04 | 1997-10-21 | Byers; Gary L. | Sharpening and deburring tool with unitary blade guard and handle |
US20030134583A1 (en) * | 2001-12-17 | 2003-07-17 | Gallegos Roy C. | Drywall knife or blade refinisher tool |
KR20040100090A (en) * | 2003-05-21 | 2004-12-02 | 한국항공우주산업 주식회사 | A Right Angle Face Forming Device |
US20060178100A1 (en) * | 2005-02-09 | 2006-08-10 | Byers Gary L | Hand-held sharpener device |
US20070266828A1 (en) * | 2006-05-19 | 2007-11-22 | Locan Properties, Llc | Sharpening and deburring tool for single and double edge type cutting blades |
US20080166959A1 (en) * | 2007-01-10 | 2008-07-10 | Williams Gary E | Scraper sharpening apparatus |
US20110081838A1 (en) * | 2009-10-02 | 2011-04-07 | Jim Bagley | Sharpener for rotary cutters |
Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US102994A (en) * | 1870-05-10 | Ing-knife | ||
US207339A (en) * | 1878-08-27 | Improvement in scissors-sharpeners | ||
US441758A (en) * | 1890-12-02 | Device for setting the edges of plane-bits | ||
US579726A (en) * | 1897-03-30 | Device for sharpening scissors | ||
US612912A (en) * | 1898-10-25 | Robert e | ||
US823279A (en) * | 1905-08-14 | 1906-06-12 | Yankee Novelty Company | Knife-sharpener. |
US940773A (en) * | 1908-12-21 | 1909-11-23 | John B Ackermann | Scraper-sharpener. |
US1190718A (en) * | 1915-08-09 | 1916-07-11 | Charles J Brunsell | Scraper-sharpener. |
US1471136A (en) * | 1922-06-13 | 1923-10-16 | Borleis August | Scissors sharpener |
US1594246A (en) * | 1925-08-28 | 1926-07-27 | Henry W Dechert | Scraper sharpener |
GB293785A (en) * | 1927-07-12 | 1928-09-06 | Paul Von Der Lippen | Knife sharpener |
US1936990A (en) * | 1933-05-10 | 1933-11-28 | George H Piermann | Scissors sharpener |
US2069608A (en) * | 1934-08-29 | 1937-02-02 | Hammond Grant | Scissors sharpener |
US2115778A (en) * | 1936-07-08 | 1938-05-03 | A & F Products | Scissors sharpener |
US2499331A (en) * | 1949-03-09 | 1950-02-28 | Martial J Robitaille | Scissors sharpening device |
US4498360A (en) * | 1983-09-14 | 1985-02-12 | Milum J David | Sharpener for a spreading tool |
US4934110A (en) * | 1985-04-22 | 1990-06-19 | John Juranitch | Edge sharpening apparatus |
US5099722A (en) * | 1991-02-19 | 1992-03-31 | Lee Valley Tools Ltd. | Cabinet scraper burnishing tool |
-
1993
- 1993-10-08 US US08/134,205 patent/US5461943A/en not_active Expired - Lifetime
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US102994A (en) * | 1870-05-10 | Ing-knife | ||
US207339A (en) * | 1878-08-27 | Improvement in scissors-sharpeners | ||
US441758A (en) * | 1890-12-02 | Device for setting the edges of plane-bits | ||
US579726A (en) * | 1897-03-30 | Device for sharpening scissors | ||
US612912A (en) * | 1898-10-25 | Robert e | ||
US823279A (en) * | 1905-08-14 | 1906-06-12 | Yankee Novelty Company | Knife-sharpener. |
US940773A (en) * | 1908-12-21 | 1909-11-23 | John B Ackermann | Scraper-sharpener. |
US1190718A (en) * | 1915-08-09 | 1916-07-11 | Charles J Brunsell | Scraper-sharpener. |
US1471136A (en) * | 1922-06-13 | 1923-10-16 | Borleis August | Scissors sharpener |
US1594246A (en) * | 1925-08-28 | 1926-07-27 | Henry W Dechert | Scraper sharpener |
GB293785A (en) * | 1927-07-12 | 1928-09-06 | Paul Von Der Lippen | Knife sharpener |
US1936990A (en) * | 1933-05-10 | 1933-11-28 | George H Piermann | Scissors sharpener |
US2069608A (en) * | 1934-08-29 | 1937-02-02 | Hammond Grant | Scissors sharpener |
US2115778A (en) * | 1936-07-08 | 1938-05-03 | A & F Products | Scissors sharpener |
US2499331A (en) * | 1949-03-09 | 1950-02-28 | Martial J Robitaille | Scissors sharpening device |
US4498360A (en) * | 1983-09-14 | 1985-02-12 | Milum J David | Sharpener for a spreading tool |
US4934110A (en) * | 1985-04-22 | 1990-06-19 | John Juranitch | Edge sharpening apparatus |
US5099722A (en) * | 1991-02-19 | 1992-03-31 | Lee Valley Tools Ltd. | Cabinet scraper burnishing tool |
Non-Patent Citations (14)
Title |
---|
"Hand Scrapers," ShopNotes, Issue 2 (Mar., 1992), pp. 12-15. |
Cover Page to U.S. Design Pat. No. 273,360 to Hill, issued Apr. 10, 1984. * |
Cover Page to U.S. Pat. No. 446,551 to Chamberlain, issued Feb. 17, 1891. * |
Hand Scrapers, ShopNotes, Issue 2 (Mar., 1992), pp. 12 15. * |
Lee Valley Catalog titled Fine Woodworking Tools 1992/93, p. 26, item numbered "E," Veritas™ Jointer/Edger. |
Lee Valley Catalog titled Fine Woodworking Tools 1992/93, p. 26, item numbered E, Veritas Jointer/Edger. * |
Lee Valley Catalog titled Fine Woodworking Tools 1992/93, p. 27, item numbered "A," Veritas™ Variable Burnisher. |
Lee Valley Catalog titled Fine Woodworking Tools 1992/93, p. 27, item numbered "B," Veritas™ Tri-Burnisher. |
Lee Valley Catalog titled Fine Woodworking Tools 1992/93, p. 27, item numbered A, Veritas Variable Burnisher. * |
Lee Valley Catalog titled Fine Woodworking Tools 1992/93, p. 27, item numbered B, Veritas Tri Burnisher. * |
Lee Valley Tool Catalog, pp. 17, 131 132 (1984). * |
Lee Valley Tool Catalog, pp. 17, 131-132 (1984). |
The 1994 Garrett Wade Tool Catalog, Sep. 1993 Sep. 1994, p. 74, item numbered A, Harris Scraper Blade Conditioner. * |
The 1994 Garrett Wade Tool Catalog, Sep. 1993-Sep. 1994, p. 74, item numbered "A," Harris Scraper Blade Conditioner. |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5679068A (en) * | 1994-08-04 | 1997-10-21 | Byers; Gary L. | Sharpening and deburring tool with unitary blade guard and handle |
US5640888A (en) * | 1995-05-17 | 1997-06-24 | Lee; Leonard G. | Woodturning scraper burnisher and method of burnishing woodturning scrapers |
US20030134583A1 (en) * | 2001-12-17 | 2003-07-17 | Gallegos Roy C. | Drywall knife or blade refinisher tool |
US6848983B2 (en) * | 2001-12-17 | 2005-02-01 | Roy C. Gallegos | Drywall knife or blade refinisher tool |
KR20040100090A (en) * | 2003-05-21 | 2004-12-02 | 한국항공우주산업 주식회사 | A Right Angle Face Forming Device |
US20060178100A1 (en) * | 2005-02-09 | 2006-08-10 | Byers Gary L | Hand-held sharpener device |
US7374475B2 (en) | 2005-02-09 | 2008-05-20 | Locan Properties, Llc | Hand-held sharpener device |
US20070266828A1 (en) * | 2006-05-19 | 2007-11-22 | Locan Properties, Llc | Sharpening and deburring tool for single and double edge type cutting blades |
US20080166959A1 (en) * | 2007-01-10 | 2008-07-10 | Williams Gary E | Scraper sharpening apparatus |
US20110081838A1 (en) * | 2009-10-02 | 2011-04-07 | Jim Bagley | Sharpener for rotary cutters |
US8152600B2 (en) * | 2009-10-02 | 2012-04-10 | Jim Bagley | Sharpener for rotary cutters |
US8708777B2 (en) | 2009-10-02 | 2014-04-29 | Jim Bagley | Sharpener for rotary cutters |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: WOODSMITH CORPORATION, IOWA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MUNKEL, KENNETH J.;REEL/FRAME:006729/0368 Effective date: 19931007 |
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STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
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AS | Assignment |
Owner name: AUGUST HOME PUBLISHING COMPANY, IOWA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WOODSMITH CORPORATION;REEL/FRAME:009893/0519 Effective date: 19990331 |
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Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
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